Abstract The organization of two farmer-managed irrigation systems in the western hills of Nepal is described by examining the ways in which the activities of water allocation, water distribution, maintenance, and resource mobilization are performed. Due to the topography and environment, these... mehr

Abstract The paper summarizes findings from a survey of farmer-managed irrigation systems in the central Mexican state of Guanajuato. Three types of information are presented: structural characteristics (e.g., group size, inequality, reservoir capacity); system rules and organization; and... mehr

Abstract In the Sheeb area in eastern Eritrea a Participatory Rural Appraisal(PRA) was carried out in two villages, one upstream and one downstreamof the ephemeral rivers Laba and Mai-ule. The objectives of the studywere to obtain a better understanding of farmer-managed spate irrigationsystems... mehr

IN the course of recent investigations in the northern Guinea savannah of Nigeria on the ecology1 of Anopheles gambiae Giles and A. funestus Giles and on their behaviour in huts sprayed with insecticides2, determinations were made of the susceptibility of both species to DDT and to dieldrin in a... mehr

Abstract The government of Zimbabwe uses agricultural development as one of the ways to stimulate economic growth. Agriculture in Zimbabwe is characterized by a dual agrarian system comprising the large scale commercial sector and the smallholder communal sector. The communal sector, 47 percent... mehr